# Diff Two Arrays(Help me out )

Diff Two Arrays(Help me out )
0

#1

Tell us what’s happening:
Guys i can’t figure out what’s wrong with my code. Would really appreciate if someone could help me out …

Your code so far

``````function diffArray(arr1, arr2) {
var newArr = [];
for(var i =0;i<arr1.length;i++){

for(var j=0; j<arr2.length;j++){

if(arr1.indexOf(i)===arr2.indexOf(j))
{
arr1.splice(i,1);
arr2.splice(j,1);
}
}
}
newArr = arr2.concat(arr1);
return newArr;
}

diffArray([1, 2, 3, 5], [1, 2, 3, 4, 5]);
``````

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Link to the challenge:

#2

I added some console.log statements to your code below. Run your script with these to see how things look during code execution.

``````function diffArray(arr1, arr2) {
var newArr = [];
for(var i =0;i<arr1.length;i++){

for(var j=0; j<arr2.length;j++){

console.log('arr1.indexOf(' + i + ') = ' + arr1.indexOf(i) + ' | arr2.indexOf(' + j + ') = ' + arr2.indexOf(j));
if(arr1.indexOf(i)===arr2.indexOf(j))
{
arr1.splice(i,1);
arr2.splice(j,1);
}
console.log('arr1 is:');
console.log(arr1);
console.log('arr2 is:');
console.log(arr2);
console.log();
}
}
newArr = arr2.concat(arr1);
return newArr;
}
``````